- Omni Cable Instrumentation Cable, Type CM/CL2/AWM Multi-Conductor Shielded, 600 VAC, 2 Conductors, Stranded Tinned Copper Conductor, 14 AWG Conductor, 0.348 in OD, 500 ft Length, 19/29 Strands, Polyethylene Insulation, PVC Jacket, Gray Jacket, 80 deg C